Feeding device for bolts and the like



Feb. 28, 1928. 1 1,660,417

' H. CREHAN ET AL FEEDING DEVICE FOR BOLTS AND THE LIKE Original FiledMay 8, 1923 3 Sheets-Sheet 1 FIG.I

mvm'rans a Hu ber t C relm-n and William A. C ehar;

ewazmaww their aj'larney Feb. 28, 1928.

1,660,417 H. CREHAN ET AL FEEDING DEVICE FOR BOLTS AND THE LIKE OriginalFiled May 8, 3 Sheets-Sheet. 2

a n g N :3 [-2 N; O 1 \M- l 1 E W l g c 1 I INVENTORS Hubert Crab-am e\9 Li zt] m1 WWIMACMW their affarnty Feb. 28, 1928.

H. CREHAN ET AL FEEDING DEVICE FOR BOLTS AND THE LIKE 5 Sheets-Shet 5Original Filed May 8. 1923 mvnvrons Hub or! Crelzzun and William A. Creham by 44% 74 WW their afforneq Patented Feb. 28, 1928.

HUBEBT GREHAN AND WILLIAM, A. CREHAN, or PirrsBUnei-r, PENNSYLVANIA.

FEEDING DEVICEFOR BOLTS AND THE LIKL.

Original application filcd'll iay 8, 1823, Serial 637,550; "Divided andthis 192 B ScrialNo. 756,645.

This application is adivision of copending application Serial No.637,550, filed May 8,1923, and constitutes an improvement in mechanismfor feeding bolts and the like.

An obj-ectof the inventionis to provide mechanism in which carryingmeans actuated with a step bystep movement present to working heads ateach step two articles, and remove at each step two such articles whichhave been acted upon by the working heads. Y

Another object of the invention is vide means for supplying two bolts,bolt blanks, or other generally similar articles which are circular ormany sided in cross section, to the carrying means during each movementthereof. j

In the accompanying drawings Figure 1 is a front elevation of theactuating connections for the carrying wheel of the mechanism; Figure 2'is. .a detail of the means for locking between forward impulses thereof;Figure 3 is a plan view of the bolt feeding mechanism proper; Figure 4is a front elevation of the same; Figure 5 is a vertical, sectionthroughthe bolt feeding Figure 4; Figure 6 is a detail view showing oneof the bolt supporting fingers in side elevation; Figure 7 is a verticalsectional View on an enlarged scale of the means for delivering Figure 8is a cross taken on the line 8+8 Figure 7 and Figure 9 is a: verticalsectional view through the bolt feeding mechanism on the line 99 Figures3 and 5. I

In the drawings the reference numeral 1 designates a shaft, which ismounted in bearings 2 on a platform 3. The shaft 1' is rotatedintermittently by connection with a constantly rotating shaft 4. Thisshaft 4 may be rotated in any desirable manner, as by being synchronizedwith the operation of the main portion of the machine in conjunctionwith which the mechanism is used, as shown in the above notedapplication of which the present is a division.

The connections for rotating the shaft 1 comprise a ratchet wheel ordisk 5, having thereon peripheral notches 6 in which engages a pawl 7.Swingingly mounted on shaft 4 is a curved lever arm 8 to which ispivotally attached a connecting rod 9,

to pro the carrying wheel in position mechanism on the line 5-5 boltstothe' bolt carrying means; sectional V ew of the sameappli'cation filedDecember 18,

which is in turn a crank 10 freely rotatable on the shaft 1.

The movement of actuating shaft 45 is transmitted to act upon theratchet disk 5 by the shaft 4; and meshes witha pinion 152' on a stubshaft On this stub shaft 13 is a cam 1 1-, which is arranged to act uponthe lever arm 8. The action of cam 14' swings lever arm 8 outwardlyintothe posit-ion shown in dotted lines in Figure 1 of the drawings, so thatpawl Z acts to. move ratchet disk 5 one step forward. itis the highposition of cam 14: moves. out of contactwith lever arm 8, the lever'a-rnnand i the members connected tl'ierewith, swing backwardly of theirown weight into the position shown in full lines in Figure 1, with thepawl 7 engaged in a succeeding notch of the ratchet dis: 5 ready for thenext forward impulse.

The mechanism shown'in Figure 2 ofv the drawings is provided to halt andmaintain the shaft 1,'with the bolt receiving and car rying meansthereon, in props-r position with respect t'ooperating heads 15 and1-6,- which are indicated" diagramm-atically in Figure 1. Thismechanism'comprises an arm 17, -whichis freely rotatable on the shaft 41and which hast iereon' a locking p in 18"arranged to engage in spacednotches 19 in the periphery of a locking disk 20. Yielding connections21 serve to maintain thelocking pin 18 in that one of the: notches 19with which 'it is engaged. The locking pin is withdrawn to permitmovement of shaft 1 by means of a cam 22, which is carried by stub shaft13 and which acts on the arm 17 to lift the same against the resistance.of resilient connection 21.

The means for feeding and carrying the bolts are shown in detail inFigures 3 to 9 inclusive of the drawings. Such means comprisecarrierdisks or hubs 23 and 24:, which are keyed to the shaft 1. -Adjustablysecured to the outer carrier disk or hub 23 are a plurality of radiallyextending fin-, gers 25, which have their outer extremities formed toprovide pockets 26 for the reception of bolts; and adjustably secured tothe carrier disk 24 are radially extending fingers 27, which areprovided with similar pockets 28.

pivotally connected with by means of a pinion. 1.1, which is carriedspectively for feeding V and retained by the pins fingers of thecarriers;

riers must serve to place two bolts in position before the operatingheads '15 and 16, it is highly desirable to provide automatic means forfeeding two bolts to the carriers at each forward impulse thereof. Suchmeans are shown particularly in Figures 3, i, 7 8, and 9 of thedrawings, and comprise primarily the brackets 29 and 30 each of which isprovided with a side wall 31 and with a guard plate 32 at the inner oroperative end there of. The brackets 29 and 30 are provided rewithinclined tracks 33 and 3A the bolts, and are also provided respectivelywith swinging rails 35 and 36 which are pivoted at one side of theircenter to the brackets 29 and 30 by means of bolts 37 The tracks 33 and3A are provided at their inner or lower extremities with bolt retainingpins 38, and the swinging rails 35 and 36 at their outer extremitieswith bolt retaining pins 39. p

Figures? and 9 of the drawings show a bolt A in position to bepicked upby the fingers of the carriers resting against the bolt retaining pins38, and with a bolt B resting against the bolt retaining pins 39. As thefingers 25 and 27 pick up the bolt A, the inner and lower ends of thepivoted rails 35 and 36 are relieved of 'its weight, and the outer orupper ends of the rails 35 and 36 fall downwardly of their ownweightinto a position in which the retaining pins 39 no longer preventmovement of the bolt B. This bolt B therefore rolls downwardly bygravity until it ischecked 38 on the tracks 33 and 34, in position to bepicked up by the ,while the rails 35 and 36 are brought into their setposition, ready to receive another bolt, by the weight of the boltresting upon their lower extremities. This action is illustratedparticularly in Figure 7 of the drawings.

In use of the mechanism the first bolt 5 when placed on the rails andtracks is immediately free to roll, down to the position shown by thebolt A, while the second bolt placed in the mechanism is held in theposition shownby the bolt B. Both these bolts are picked up during asingle forward movement of the bolt carrying means; and during theinterval while these bolts are being acted upon, two. more bolts aresupplied to assume the posit-ions A and B.

Secured to the outer side of the outer car- -rier 23 are a plurality ofplates of resilient metal arranged to bear heads of the bolts which arethe fingers of the carriers, so that they are held firmly but yieldinglyfor attachment of the nuts; As will be seen in Figure 3 of the againstthe supported by till drawings, the resilient plates 40 are preventedfrom coming into contact with the head of bolt A by guard plate 32.

What we claim is: i j

1.Means for feeding bolts and the like comprising a fixed inclined trackor way, bolt retaining means adjacent the lower extremity of said track,its heavier portion toward the upper extremity of said track andarranged to be operated by the weight of bolts on the track, and boltretaining means on said member arranged to retain a bolt adjacent theupper extremity of the track.

2. Means for feeding bolts and the like comprising a fixed inclinedtrack or way, bolt retaining means adjacent the lower extremity of saidtrack, a pivoted member having its heavier portion toward the upperextremity of the track, and bolt retaining means adjacent suchextremitythereof; said pivoted member being so arranged that a boltretained adjacent the lower extremity of the track rests upon the adjaoent portion of said member to cause the bolt retaining means adjacentthe upper extremity of the track to hold a bolt in position thereon. Vln witness whereof, we hereunto set our a pivoted member having

